ASTROSAT CZTI

Data Quality Report

Orbit 36103

Creation date: 2022-08-10T10:46:29.520613
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T04_069T01_9000005158_36103cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36103cztM0_level2_quad_clean.evt
Size (bytes)455,224,32045,339,840
Size434.1 MB 43.2 MB
Events in quadrant A2,702,024262,634
Events in quadrant B3,822,552255,206
Events in quadrant C3,381,790259,344
Events in quadrant D3,537,895241,499

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108643
B0145832
C0129862
D0138232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A503860.119095%
B50383617.165542%
C50381512.997221%
D50382434.823343%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7161 5039 0 0 0.00% 0.00%
B 7161 5039 241 241 3.37% 4.78%
C 7161 5039 122 122 1.70% 2.42%
D 7161 5039 200 200 2.79% 3.97%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 169340 1370.99 608 596 123.1
A 15 223 165250 1337.76 608 596 123.1
A 8 144 8506 64.27 608 596 123.1
B 5 172 565950 5017.44 591 576 112.7
B 5 236 425396 3770.08 591 576 112.7
B 5 255 333222 2952.08 591 576 112.7
C 0 207 408178 2968.69 588 593 137.3
C 1 23 238210 1730.71 588 593 137.3
C 15 214 227587 1653.34 588 593 137.3
D 12 6 352677 2488.05 579 563 141.5
D 1 52 235947 1663.23 579 563 141.5
D 13 249 202478 1426.74 579 563 141.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter